Purcell效应

- July 6, 2023 at 1:07 pm
  
  221068316
  Subscriber
  
  您好，想问一下大佬们，使用FDTD 仿真表面等离子体时，如何测Pullcell效应的数值还是如何计算出来的
- July 6, 2023 at 6:03 pm
  
  Guilin Sun
  Ansys Employee
  
  当然可以采用文献中的方法，有六个监视器的BOX 分析组计算透射率，也可以用偶极子本身记录下来的Purcell因子。可以在网站上搜索相关例子，比如
  Purcell factor of a microdisk
  1D high-Q cavity
  FDTD vs stackdipole - halfspace emission in a multilayer stack
  不知道波长是多少，如果是光学波长，1微米的距离可能产生严重的吸收，用BOX 方法会降低此因子。
  如果只是膜层结构，可以使用解析算法 stackpurcell - Script command
  文献中说沿Z轴入射，不知道是怎么定义的，因为偶极子在整个空间辐射，没有什么入射角。有可能是指偶极子的偏振？这个你要看上下文。不同偏振的结果可能不同。

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